Cockle-mill



J. M. KING. Cockle Mill.

Patented Nov. 9, 1880.

INVENTOR Z Jm /$z 1 ATTORNEYS.

UNITED STATES PATENT OFFICE.

JAMES M. KING, OF WALNUT STATION, MINNESOTA.

COCKLE-MILL.

SPECIFICATION forming part of Letters Patent No. 234,290, dated November 9, 1880.

Application filed February 24, 1880.

To all whom it may concern Beit known that 1, JAMES M. KING, of Walnut Station, in the county of Redwood and State of Minnesota, have invented a new and useful Improvement in Cockle-Mills, of which the following is a specification.

Figure l is a sectional elevation of the improvement, taken through the line as ac, Fig. 2. Fig. 2 is a plan view. Fig. 3 is a side view of the feed-shaft.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish cockle-mills for separating cockle and other small seeds from wheat, which shall be sim ple in construction and effective in operation.

A is a box open upon the upper side and end, and having an opening, B, at its lower end for the escape of the wheat, and an opening, 0, in the lower part of its bottom for the escape of the cockle.

D is a wire-gauze screen extending longitudinally through the box A. The wire-gauze D at intervals is bent twice at right angles, forming a series of offsets or steps, E, as shown in Fig. 1. The offsets or steps E are supported and strengthened by rabbeted bars F in the rabbets of which the said steps E rest.

To the sides of the box A are attached the ends of the cross-bars G, which bars G are placed at a little distance from the steps E, and with their lower parts slightly overlaping the said steps E, as shown in Fig. 1.

For conveniencein manufacturing, thescreen D and cross-bars F G may be attached to boards A, and the said boards A attached to the sides of the box A.

Above the upper part of the screen D is placed a hopper, H, which is made with a long and narrow discharge-opening, through which 4.0 the grain escapes to the screen D. The lower side of the hopper H is extended downward,

as shown in Fig. 1, so as to guide the grain to the upper part of the screen D.

To the sides of the box A is pivoted a shaft, 5 I, which is placed just below the dischargeopening of the hopper H, and is provided with radial pins or teeth J to spread the grain as it escapes from the hopper H. To one end of the shaft I is attached a crank, K, by means 0 of which the said shaft is revolved.

The box A is placed at such an inclination that the grain will pass down the screen D by the action of gravity, the cross-bars G serving as stops to project the grain downward at each step E. With this construction the cockle-seed passes through the screen D and escapes through the opening 0, while the wheat passes down the screen D and escapes through the end opening, B.

To the sides of the upper end of the box A are pivoted the ends of two legs, L, to support the upper end of the mill and allow it to be adjusted at any desired inclination.

Having thus described my invention, I claim as new and desire to secure by Letters Patent In a cockle-mill, the adjustably-inclined step-formed screen D, provided with the checking and spreading boards G, arranged just below the edge of each step and perpendicular thereto, so as to intercept and spread the material before passing to the next section, as shown and described.

JAMES MADISON KING.

Witnesses:

F. H. HILLS, E. BEDAL. 

